I have the exact same problem. looks like the install is corrupt or something. now it wont let me uninstall it.
says " error 1001. An exception occurred while uninstalling. This exception will be ignored and the uninstall will continue however the application may might not be fully uninstalled after the uninstall is complete -> Object reference not set to an instance of an object
Does anyone else have this issue too? also after i installed it i look under all programs -> DVRMSTToolbox I get Icons that look like they aren't associated to anything and when i click on them they try to open in internet explorer and error out. I looked at the file extension and it looks like they're all .lnk files (and this is before i even attempted to uninstall the program.

Anyone know how to get this working on win7 64-bit? I'd love to get this to work!